The differentiate of the actor bad of stainless steel wire

Of stainless steel wire exceedingly good the differentiate with true bogus:
Some people feel OK to through magnet adsorption check of stainless steel wire comes differentiate, do not suck do not have magnetism, thinking is good, all wool and a yard wide; is sucked have magnetism, thinking so is pinchbeck, fake. Original, this is a kind of extreme is one-sided, the discriminative method of accident. Wire of factual stainless steel also is met " rusty " , also can taking wire of magnetic stainless steel is with surmounting the iron of 60% is matrix, participate in the tall alloy steel of the alloying element such as subsidiary channels in the human body through which vital energy, nickel, molybdenum, its are the biggest the characteristic is anti-corrosive ability is stronger, but stainless steel wire is not do not rust absolutely. Serious place is polluted in foreland or certain air, when chloric ionic content is bigger in air, it is OK to expose the surface of stainless steel wire in atmosphere can have a few rusty spot, but these rusty spot surface of be confined to, won't corrode matrix of interior of stainless steel wire.
The breed of stainless steel wire is very much, great majority contains magnetism, accordingly, using magnetic body adsorption is not the scientific method of wire of divisional stainless steel. Use as normally the majority of stainless steel wire that decorates tube plate is austenite model 304 raw material, will tell normally do not have magnetism or weak magnetism, but because take exercise to form chemical composition to shake or machine a state different perhaps also present magnetism, but it is pinchbeck that this cannot think or unqualified, what reason is this? Respecting austenite is not to have magnetism or weak magnetism above, and martensite or ferrite take magnetism, slant because of the composition when taking exercise analyse or heat treatment misgivings, can form austenite a few martensite in wire of 304 stainless steel or ferrite arrangement. So, faint magnetism can be contained in wire of 304 stainless steel.
Other, wire of 304 stainless steel passes cold working, arrangement constructs to also can be changed to martensite, cold working is out of shape degree bigger, martensite is changed more, the magnetism of steel is bigger also. As the metal strip of one lot number, produce 76 canals of Φ , without apparent magnetism feeling; produces 9.5 canals of Φ , because Ling turn is out of shape bigger magnetism feels a few more apparent,; produces square rectangular canal because deflection is bigger than round canal, especially knuckle some, be out of shape more acuteness magnetism is more apparent.